JLG 860SJ Operator Manual - Manual (Page 61)

SECTION 4 - 3MACHINE OPERATION
3121630 – JLG Lift – 4-1
SECTION 4. 3MACHINE OPERATION
4.1 DESCRIPTION
This machine is a self-propelled hydraulic lift equipped with a
work platform on the end of an elevating and rotating boom.
The primary operator control console is in the platform. From this
control console, the operator can drive and steer the machine in
both forward and reverse directions. The operator can raise or
lower the upper or lower boom or swing the boom to the left or
right. Standard boom swing is 360 degree continuous left and
right of the stowed position. The machine has a Ground Control
Console which will override the Platform Control Console.
Ground Controls operate Boom Lift and Swing, and are to be
used in an emergency to lower the platform to the ground
should the operator in the platform be unable to do so. The
Ground Control is also to be used in Pre-Start Inspection.
4.2 OPERATING CHARACTERISTICS AND LIMITATIONS
Capacities
The boom can be raised above horizontal with or without any
load in platform, if:
1. Machine is positioned on a smooth, firm and level surface.
2. Load is within manufacturer’s rated capacity.
3. All machine systems are functioning properly.
4. Proper tire pressure.
5. Machine is as originally equipped from JLG.
Stability
Machine stability is based on two (2) conditions which are called
FORWARD and BACKWARD stability. The machine’s position of
least FORWARD stability is shown in (See Figure 4-2.), and its posi-
tion of least BACKWARD stability is shown in (See Figure 4-1.)